A tree of 24 ft. casts a shadow of 16 ft. at 6:00 PM. What is the height of a tree that casts a shadow of 21 ft. at the same time of day?

What are “like terms”? why can we only add like terms?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?